Upbeat Korean pansori singing.
Even in a clean-cut concert hall, lots of audience participation.
Reenactment in Incheon airport.
Incheon, known for continuously being voted the best airport in the world for eleven years now, offers real incentives for checking in early. They also include live music, of course wifi, and areas for free showers and sleep that must be seen to be believed. I hear you can find free massage armchairs (but I never check in early).